• March 13, 2023

    Add Value to the Load Profile

    Magic Power

    Since our core business is metering and measurement, our CLOU energy meters can contribute with data. Very typical for utilities is the collection of load profiles.

  • May 3, 2023

    Poor Meter Connections are Causing Heat

    constante del medidor

    Maintaining the right cross-section avoids overheating and is also reducing the internal resistance.

  • May 3, 2023

    The Christmas Gimmick 2020

    Table Tennis Stamp 1959

    Table Tennis (Pīngpāng qiú 乒乓球) is one of the top National sports in China. As a proof of concept we have remade a very old arcade game.

  • May 4, 2023

    How Mean is the Value?

    r CL730D22L a

    CLOU energy meters and test equipment is measuring the true RMS value by waveform sampling. There are other methods, but they are less accurate.

  • May 4, 2023

    Waveform Sampling for Electrical Measurements

    Waveform Sampling Basics

    The interactive graphics below shows the impact on sampling rates on different waveforms. The error calculation is based on true-rms for a wave with 360 samples and for training purpose only.

  • July 12, 2023

    Selection of Current Transformers


    Transformer operated energy meters need instrument transformers to reduce high voltage- and current values to lower quantities for measurement purpose.

  • July 10, 2023

    Cross-sections for electricity wiring

    cat5 cable cradle wiring

    Each conductor wire has a resistance. Resistance means heat development inside the wire. Technically it’s a loss.

  • July 11, 2023

    The Critical Change Value

    Aristo Trilog slide rule

    The critical change value indicates the maximum amount of change allowed in the meter’s energy registers during disturbance tests without any current flowing in the meter’s current circuits.

  • May 6, 2023

    No Load Test for Energy Meters 2020


    With publishing of the Edition 2 of IEC62052-11 the minimum run time calculation formula has changed.

  • June 27, 2023

    The Energy Meter Register Resolution

    r CL710K16 SHORT 1

    The main purpose of an electronic energy meter is the accurate metering of the customer consumption. The meter has registers for storing the various consumption values

  • May 10, 2023

    How does a scanning head work?

    scanning head principle

    Each energy meter used for billing must have a test output. An optical indication is mandatory. Beside this the meter can also have electrical test outputs.

  • July 6, 2023

    The Principle of Three-Phase Generators


    We have a nice three phase power supply in our home, but where does it come from? And why does the waveform has a sine shape?